Shoe attachment



FIG. 1 is a perspective view of a shoe attachment showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a first side view thereof;

FIG. 5 is a second side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a perspective view thereof, shown in a condition of use with a shoe in broken lines.

The broken lines shown in FIG. 8 form no part of the claimed design. 

CLAIM I claim the ornamental design for a shoe attachment, as shown and described. 